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#1
March 5th 05, 01:26 AM
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D70 Viewfinder question
Test::
Camera on or off, lens in place or not in each of the following two cases: 1. Battery installed 2. Battery removed Viewfinder screen is bright Viewfinder screen is dull Why does the battery affect the viewfinder brightness? 
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#2
March 5th 05, 01:48 AM
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"Graham" wrote in message ... Test:: Camera on or off, lens in place or not in each of the following two cases: 1. Battery installed 2. Battery removed Viewfinder screen is bright Viewfinder screen is dull Why does the battery affect the viewfinder brightness? Not sure exactly what the problem(?) is, but keep in mind that even though the camera is off it's still running a few things, like displaying the number of images left on the memory card. One of the things that makes the D70 unique is that it turns on instantly, so we know there is juice running to some things in the camera even when it's off.
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#3
March 5th 05, 07:22 AM
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Graham wrote:
Camera on or off, lens in place or not in each of the following two cases: 1. Battery installed 2. Battery removed Viewfinder screen is bright Viewfinder screen is dull Why does the battery affect the viewfinder brightness? Nice observation! It's because (I posit) all the "symbology" on the viewfinder is created using LCD, either an overlay or a combined image. With the battery removed, the LCD depolarises and goes uniformly dark. -- Ken Tough
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#4
March 5th 05, 09:00 AM
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"Graham" wrote in message ... Test:: Camera on or off, lens in place or not in each of the following two cases: 1. Battery installed 2. Battery removed Viewfinder screen is bright Viewfinder screen is dull Why does the battery affect the viewfinder brightness? The battery is used to open the aperture on the lens. If you look at the lens from the front, with the battery out, you will see that the lens is stopped right down - you'll see that it has a very small hole for the aperture. Stick the battery in and the aperture will open up. Closed aperture = little light = dull viewfinder. Open aperture = lots of light = bright viewfinder.
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#5
March 5th 05, 09:41 AM
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"Justin Thyme" wrote in message ... "Graham" wrote in message ... Test:: Camera on or off, lens in place or not in each of the following two cases: 1. Battery installed 2. Battery removed Viewfinder screen is bright Viewfinder screen is dull Why does the battery affect the viewfinder brightness? The battery is used to open the aperture on the lens. If you look at the lens from the front, with the battery out, you will see that the lens is stopped right down - you'll see that it has a very small hole for the aperture. Stick the battery in and the aperture will open up. Closed aperture = little light = dull viewfinder. Open aperture = lots of light = bright viewfinder. Where the hell did you get that from?
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#6
March 5th 05, 09:41 AM
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"Justin Thyme" wrote in message ... "Graham" wrote in message ... Test:: Camera on or off, lens in place or not in each of the following two cases: 1. Battery installed 2. Battery removed Viewfinder screen is bright Viewfinder screen is dull Why does the battery affect the viewfinder brightness? The battery is used to open the aperture on the lens. If you look at the lens from the front, with the battery out, you will see that the lens is stopped right down - you'll see that it has a very small hole for the aperture. Stick the battery in and the aperture will open up. Closed aperture = little light = dull viewfinder. Open aperture = lots of light = bright viewfinder. Where the hell did you get that from?
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#7
March 5th 05, 02:44 PM
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"Ken Tough" wrote in message ... Graham wrote: Camera on or off, lens in place or not in each of the following two cases: 1. Battery installed 2. Battery removed Viewfinder screen is bright Viewfinder screen is dull Why does the battery affect the viewfinder brightness? Nice observation! It's because (I posit) all the "symbology" on the viewfinder is created using LCD, either an overlay or a combined image. With the battery removed, the LCD depolarises and goes uniformly dark. -- Ken Tough Thanks Ken, Sounds reasonable to me. Graham
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#8
March 6th 05, 08:53 PM
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Hugh Jorgan wrote:
"Justin Thyme" wrote in message ... "Graham" wrote in message ... Test:: Camera on or off, lens in place or not in each of the following two cases: 1. Battery installed 2. Battery removed Viewfinder screen is bright Viewfinder screen is dull Why does the battery affect the viewfinder brightness? The battery is used to open the aperture on the lens. If you look at the lens from the front, with the battery out, you will see that the lens is stopped right down - you'll see that it has a very small hole for the aperture. Stick the battery in and the aperture will open up. Closed aperture = little light = dull viewfinder. Open aperture = lots of light = bright viewfinder. Where the hell did you get that from? Try it with your DSLR and you'll see he is right. -- Ben Thomas
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#9
March 7th 05, 01:43 AM
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On Sat, 5 Mar 2005 19:00:21 +1000, "Justin Thyme"
wrote: "Graham" wrote in message ... Test:: Camera on or off, lens in place or not in each of the following two cases: 1. Battery installed 2. Battery removed Viewfinder screen is bright Viewfinder screen is dull Why does the battery affect the viewfinder brightness? The battery is used to open the aperture on the lens. If you look at the lens from the front, with the battery out, you will see that the lens is stopped right down - you'll see that it has a very small hole for the aperture. Stick the battery in and the aperture will open up. Closed aperture = little light = dull viewfinder. Open aperture = lots of light = bright viewfinder. How does that work when the lens isn't on the camera? "Camera on or off, lens in place or not in each of the following two cases:" -- Bill Funk Change "g" to "a"
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#10
March 7th 05, 12:54 PM
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On Sun, 06 Mar 2005 20:53:16 GMT, Ben Thomas
wrote: Hugh Jorgan wrote: "Justin Thyme" wrote in message ... "Graham" wrote in message ... Test:: Camera on or off, lens in place or not in each of the following two cases: 1. Battery installed 2. Battery removed Viewfinder screen is bright Viewfinder screen is dull Why does the battery affect the viewfinder brightness? The battery is used to open the aperture on the lens. If you look at the lens from the front, with the battery out, you will see that the lens is stopped right down - you'll see that it has a very small hole for the aperture. Stick the battery in and the aperture will open up. Closed aperture = little light = dull viewfinder. Open aperture = lots of light = bright viewfinder. Where the hell did you get that from? Try it with your DSLR and you'll see he is right. It doesn't match Grahams OP: "lens *in place or not*" How can the D70 stop down the aperture when the lens is laying on the table, disconnected? Telekinesis? -- Owamanga!
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